Wall construction.



H. G. RBBINS.

WALL UNSTRUCTION.

APPLICATION FILED JULY ze, 1913.

1,106,584. Patented Ag. 11,1914,

HARRY G. ROBBINS, QF MINNEAPOLIS, MINNESOTA.

WALL CONSTRUCTION.

Specification of Letters Patent.

PatentedsAug. 11, 1914-.

Application led July 26, 1913. Serial No. 781,340. i

To all whom/it 'may concern.

Be it known that I, HARRY G; RoBiNs,

citizen of the United States,`resident of Minneapolis, Hennepin county,Minnesota, have invented certain new and useful Iliiprovements in WallConstruction, of which the follcwingis a specification.

My invention relates to a fire-proof building wall and the object of theinvention is to hermetically seal the horizontal and verti- Y cal jointsbetween the blocks composing the wall to the end that the entrance ofcold an into the building through the wall will be positively prevented.

Other objects of the invention will appear from the following detaileddescription. l

The invention consists generally 'in various constructions andcombinations, all as hereinafter described and particularly pointed outin the claims.

In the accompanying drawings forming part of this specification, Figure1 vis a perspective view of a building wall embodying my invention, Fig.2 is a horizontal scctional view of a portion of the wall,Fig. 3 is aview of one of the flexible filler plates or pads inserted in thevert-ical Vjoint between the blocks.

In the drawing, 2 represents the blocks of which the wall is composed.These blocks are provided with a series of openings 3 onreaeh side ofthe middle portion thereof and a central opening 4, forn'iing, when theblocks are placed in courses in the wall, a series of passages runninghorizontally through the wall, having the function, as usualI in hlorlisof this kind, oi' preventing the moisture from passing through th'eblocks from the outer to the inner surfaces thereof. lhe longitudinalmiddle portions of th(` blocks above and below the openings 4 are alsoprovided with longitudinal i'ecesses 5 extending from end to end of eachblock and adapted to register with one another when the blocks areplaced with abutting endsI in the course.

ln building ya wall, the blocks ai'e laid in courses, one upon another,in mortar t3, and it has been found difficult, if not impossible, toclose the joints between the abutting ends of the blocks in the sainecourse and prevent the passage of cold air through the joints andprovide a reutral dead air spare in each block that is lu-,rinetieallysealed at each end. 'lhe mortar ivill drop out of the joints lietwrenthe blocks, allowing air to enter the central opening therein andprevent the formation ofthe deadgai'r space. To avoid this objection, Iprefer Vto lomit entirel the vuse of mortar between abutting bloc s inthe sa'me course, and providea filler plate or pad 7 of suitableflexible material, suchas felt, or the like, of sufficient width and`height to cover the eentralopening tand exclude the entrance of airtherein when the blocks are set up in the building wall; The

yielding surfaces of thesefller plates will coliform tothe slightlyuneven endsof the blocks and when the courses are laidfand Y the endsofthe blocks brought together, the

filler plates will be securely held lbetween the hlocksrin the samecourse, thereby excluding the passage of air between them andthe' andoutside coats and be concealed vthereby when the wall is finished, andas 1 prefer to provide a filler plate inreach vertical joint of thewall, it follows that there will be a central dead air space `formed ineach block to cut o the passage `of moisture through the blocks, w'hilethe fllerplates will hermetically seal each jointvbetweenthe 'abutf'eeive the edges of these strips at the points 'where they cross thejoints between the abutting ends of the blocks. These strips may be madeof felt or any other suitable material that is adapted for this purpose.When these strips have been inserted into the recesses in the Vblocks,the horizontal joints between the ycourses will be hermetically 'sealedand passage of air or moisture through these joints will be entirely prevented. These strips will also hold the filler plates 7 in positionbetween the ends of the abutting blocks. A wall constructed in thismanner will have a central dead air space in each block separated ateach end by the flexible filler plate from the corresponding air spaceof the adjacent block. The novelty in this case lies in the use of aninsulating filler plate in the joint between the ends of abuttingblocks, this insulating plate not only closing the ends of the openingin the Cai ies

lof longitudinal, independent openm block-,but fermingva non-cenductorof heat ifi'd cold in the joint itself and thereby the entire wall isrendered proof against the passageof air or moisture` I claim as myinvention n `1.,A wall composed of a series of blocks,

veach having. a narrow central opening ex# tendin through the block fromend to end thereo and vertically from a point near the to of the block-to a oit near the bottom t ereof, each block aving a plurality BX-tending vfrom end to end of the block on each side of said centralopening, filler 'plates of insulating material inserted between abuttingends of blocks in the same course and seated against the walls of saidcentral opening and closing and concealing each end of said centralopenings, whereb aoentral dead air space is formed in eac side of saidcentral blocksoperatingV theelongitudinal independ-i ent openings on onopening from the corkespondinglongitudinal yopenings on the oppositesidethereof, thereby insulating said wall and the joints thereof against thepassage of lient and cold.

cealing each end of Vsaid central opening to form a dead air spaceseparating the ,longiltudinal openings one from the other and insulutingsaid wall andV the joints thereof against the passage of heat and cold.

In witness whereof, I have hereunto set my hund this 22d day of July,1913.

HARRY G. ROBBINS.

Witnesses GENEVIEVE E. SonENsEN,

C. H.l REHFUSS.

